The 2004 Indian Ocean earthquake was a 9.1-9.3 magnitude earthquake that triggered a series of devastating tsunamis. It killed over 225,000 people across 11 countries, with Indonesia, Sri Lanka, India, and Thailand impacted most severely. Waves as high as 30 meters inundated coastal communities. It was one of the deadliest natural disasters in history and caused global seismic effects.

1. Tsunami 2004

2. The 2004 Indian Ocean earthquake was an undersea earthquake that occurred at 00:58:53 UTC on December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia. The earthquake was caused by subduction and triggered a series of devastating tsunamis along the coasts of most landmasses bordering the Indian Ocean.

3. It killed more than 225,000 people in eleven countries, and inundating coastal communities with waves up to 30 meters high. It was one of the deadliest natural disasters in history. Indonesia, Sri Lanka, India, and Thailand were hardest hit.

4. With a magnitude of between 9.1 and 9.3, it is the second largest earthquake ever recorded on a seismograph. This earthquake had the longest duration of faulting ever observed, between 8.3 and 10 minutes.

5. Since 1900 the only earthquakes recorded with a greater magnitude were the 1960 Great Chilean Earthquake (magnitude 9.5) and the 1964 Good Friday Earthquake in Prince William Sound (9.2).

6. It caused the entire planet to vibrate as much as 1 cm and triggered other earthquakes as far away as Alaska. The disaster is known by the scientific community as the Great Sumatra-Andaman earthquake and is also known as the Asian Tsunami and the Boxing Day Tsunami.

7. The plight of the many affected people and countries prompted a widespread humanitarian response. In all, the worldwide community donated more than $7 billion in humanitarian aid.

8. 2004 Indian Ocean earthquake Tsunami strikes Ao Nang, Thailand. Date: December 26, 2004 Magnitude 9.3 Depth: 30 km Type: undersea (subduction) earthquake Countries/regions affected: Indonesia (mainly in Aceh), Sri Lanka, India (mostly in Tamil Nadu), Thailand. Tsunami: Yes Casualties : 229,866 / 2nd deadliest earthquake of all time

10. Amplitude of the wave Waves up to 30 meters and 100 feet high!!!

11. How the shape of beaches affected the amplitude of the wave. Depending on the depth of the water, the beach had, decided how much destruction it will make.

12. Whether Scientists detected the earthquake in time to warn people about it. WARN THE PEOPLE IMMEDIATELY!!!

13. Why most people did not get a warning? Scientists didn’t warn people to go away because maybe they were not sure about the earthquake and then the people discuss badly their names and it could cause to them, an unemployment. The countries would have lack of tourism. Because of other countries’ benefits.

14. What can be done to reduce the loss of life and damage if another tsunami occurs in the same area? Inform to all people the fact. Go somewhere safer. Go to a high place to protect yourself from the flooding. Example: on the roof of your house, or to a high mountain.

15. By Antonis Poullou